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(N9 Model.) 2 Sheets-Sheet 1.

W. H. NORTHALL.

BENCH VISB.

' INVBNTOR Nsss:

. MMM A A BSI/Q47 Z 62%@ ATTORBY (No Model.) 2 Sheets-Sheet 2.

W. H. NORTHALL.

e BENCH VISE.

No. 298,225. l .Patented Mey 6, V1884.

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.INVENTOR' m' MW BYMW ATTORNEY N4 PETERS. PhnwLithognpher, washn nnnn c Nirnn STATES A)PATENT OFFICE.

VILLIAM H. NORTHALL, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO C.

S. LEET, OF SAME PLACE. ,4

BENCH-VISE.

SPECIFICATION forming part of Letters Patent No. 298,225, dated May 6, 1884.

Application med october 1o, 1883. (No model.)

To all whom z5 may concern: A

Be it known that I, WILLIAMH. NoR'rHnLL, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented new and useful Improvements in Bench-Vises, of which the following is a specification.

This invention relates to improvements in bench-vises, the object being to provide improvedmeans for disengaging the jaw-moving turned on the latter to stand at different angles (in a horizontal plane) on the bench. v

In the drawings forming part of this specification, Figure 1 is a side elevation, partly in section, of a bench-vise embodying my invention. Fig. 2 is a transverse section on line fr, Fig. l. Fig. 8 is a plan view of the body of the vise 'separate from the movable jaw. Figs. 4, 5, 6, 7, and 8 are detail views. Fig. 9 is a longitudinal section' of the sleeves a and b. i

In the drawings, A indicatesthe body of the vise, on which is the iiXed jaw, and which is provided with a circular bevel-edged foot, H.

E is the vise-base, of circular form, having projections around its border, through which bolts o are placed, to secure the base to the bench F. The base E is provided with a lip, m, whose face next to the center of the base is out under, as shown, and which encircles a large part of the foot H, which is beveled to conform to the incline of the face of said lip. About opposite the center of lip m, on base E, is located a clamp-block, a, one end of which bears against an abutment, y, and the opposite 'end is beveled to correspond to the incline of the edge of the foot II. A clamp-bolt, w, passes through block a into the base E, and serves to force said block with great power between the foot H and the abutment y, thereby clamping the foot of the vise so lforcibly that it cannot turn whilebeing used.` By turning back screw w a very little, the vise may be turned upon its base to any desiredposition, and then be refastened, as before.

rIhe movable jaw part of the vise is indicated by B, and is provided with the usual tail,- piece, B,within which is secured the screw P, in the usual manner and position. The tailpiece Bis ttedto have an endwise movement in the body A of the vise in the usual manner, the latter, however, being provided with a circular abutment, K, standing up inside of the part B', and through which screw I? passes freely.

Within the body A are pivoted two nutsections, e e2, upon a hinge-screw, f, the lat ter being capable of an endwise movement in,v

the said body, for the purpose of moving the nut-sections and parts directly connected or operating therewith toward the abutment K, as hereinafter described. A spring, l0, serves to move said parts from the abutment when the screw releases them. A spring, t, held in by the screw i2, is located in each side of body A, opposite the lower ends, q, of the nut-sections.- Said springs bear against said ends q and close the nut-sections. The nut-section e2 has pivoted on it a cam, o, which isadapted to bear on an inclined bearing, 8, on 'the opposite section, e. rlhe ends of the nut-sections above said cam o are provided with a slightlyprojecting ring, a. The position of the nutsections in the body permits of their extending upward within the tail-piece B', on opposite sides of the screw l?, vand between the ends of the nut-sections and the abutment K are placed the below-described devices, which cooperate with the said screw and sections to open and close the latter. The screwPis provided with a splinegroove, as shown. A sleeve, a, having in it a key, 3, to fit said groove, is fitted to said screw, so that the latter is permitted to slide freely through it, while the sleeve is forced to turn with the screw. The sleeve a is provided with asocket, 2, on its outer face, `to receive the end of the pawl d.

A sleeve, b, different views of which are shown in Figs. 4, 6, and 8, has an opening through one side of it, and within said opening is pivoted the pawl d, under one end of which is located a spring, 5, and a spring, 4. is placed between one edge of the pawl and IOO the adjoining edge of said opening, to crowd the pawl toward the opposite edge thereof. A shoulder, 13, is provided around the interior 0f sleeve b, as in Fig. S, and its end adjoining the nut-sections c el is provided with a circular chamber, 7, to receive the ring z on the end of the sections. The under side of sleeve b, at its end,whieh reaches over the cam o, has a slightly-curved bearing-surface, 6, formed on it. The sleeve b has the above-described sleeve a fitted into it, so that the latter freely slides in it or the sleeve b upon sleeve a, and one end of the latter is held against the abutment K by springs (shown in dotted lines in Fig. l) interposed between the opposite end of sleeve a and the shoulder 13 in sleeve b. Pawl d is adapted to be engaged in the socket 2in sleeve a, or to ride upon the surface of the latter at one end of the socket, according to the position of the pawl relative to said socket, which position is changed as sleeve b is made to slide on sleeve a, as hereinafter dcscribed.

The operation of my improvements, which relate to the operation of the movable jaw B by or independently of the screw P, is as follows: Tothrow open the nut-sections clear from screw P, so that jaw B and the screw are free to be moved in body A to adjust the jaw to the work to be secured between the jaws, sciew P is turned, with sleeve a, to the left, engaging the socket 2 on the latter with pawl d, and causing sleeve b to turn also. Said movement of sleeve b brings the face 6 thereon to bear on the cam o, and, forcing the latter against the inclined face S 011 the section c, causes the sections to swing apart, as in Fig. 7, and release screw P. The operator holds screw P and sleeve b in that position, and is thus enabled to slide jaw B and its tail-piece back and forth in body A, and bring said jaw against the piece of work to be secured in the vise, and having done so he turns screw P to the right, relieving cam o from the pressure of the sleeve Z) and letting springsi close the nutsectious upon screw P, which he then turns to clamp the work in the vise in the usual way.

To adjust the above-described parts so that the nut-sections are locked against screw P, and so that the sleeve a will not operate with pawl d to turn sleeve b, screw P and sleeve a are turned to carry socket 2 away from under pawl d, and screw f is then turned in, moving the nut-sections against the end of sleeve Z1, and carrying ring thereon `into chamber 7 and moving said sleeve on sleeve a against the abutment K. This position of sleeve b brings the end of pawl d upon the surface of sleeve a at one end of socket'2, so that the latter interposes no obstacle to the movement of the pawl over it, and permits screw P to be turned uninterruptedly in either direction,like a common visescrew. The nut-sections are locked together upon screw P by the engagement of ring z in the chamber 7 in the end of sleeve b. Said sleeve b has only an oscillating movement, not a rotating one.

Turning screw f back restores the said sleeves and nut-sections to the positions they occupied before it was turned in, as just described. The screwed portion of screw f abuts against the nut-sections when it is turned in, and thus moves them, as above set forth. Spring 10 makes the sections follow the movement of the screw backward.

Vhat I claim as my invention is- 1. rPhe combination, with the body of avise and with the screw for operating the movable jaw thereof, of two nut-sections pivoted in said body, and arranged to swing against and from said screw,and mechanism, substantially as described, operated by said screw for swinging the nut-sections upon their pivot, substantially as described.

2. The combination, with the body of a vise and with the screw for operating the movable jaw thereof, of two nutsections pivoted in said body, and movable therein by mechanism, substantially as described, in the direction of the length of said screw, and mechanism, substantially as described, for locking said nutsections against the screw, substantially as set forth.

3. The combination, with the movable jawscrew of a vise, of a vise-body having therein an abutment through which said screw passes, of two nut sections, substantially as described, pivoted in said body, of a sleeve provided with a pawl socket, and having a spline connection with the jaw screw, of a sleeve fitted over the above-named sle'eve having a pawl therein to engage in said pawlsocket, and means, substantially as described, for swinging said nut sections toward and from the jaw-screw by oscillating said pawlearrying sleeve, substantially as set forth.

4. rPhe combination, with the nut-sections e e2, of the cam o, the sleeve I), springs i, and means, substantially as described, forimparting to said sleeve an oscillating movement, substantially as set forth.

5. The combination, with the nut-sections c 02, having the ring thereon, of the sleeve b, having the chamber 7, and means, substantially as described, for engaging said nutsections with the said chamber in the end of said sleeve, substantially as set forth.

G. In combination, the body A, having the abutment K therein, the screw f, spring 10, the nut-sections c el, and the sleeves b and a., having springs interposed between them to give the former an endwise movement on the latter, substantially as set forth.

7. rPhe combination, with the body of a vise having a circular bevcl-edged foot thereon, substantially as described, of a base having a circular lip thereon to encircle a portion of said foot, andan abutment thereon opposite said lip, and a clamp-block adapted to be sccured between said abutment and the edge of said foot, substantially as set forth.

VILLIAM H. NORTI'IALL.

\Vitnesses:

G. l). Lnn'r, D. F. Cnoru'r.

IIO 

